A muffler assembly

Abstract

The application provides a muffler assembling device, which is assembled at the bottom of a vehicle frame, and comprises a moving base, a lifting tray located above the moving base and connected with the moving base through a lifting assembly to be lifted relative to the moving base under the driving of the lifting assembly, a supporting piece arranged on the lifting tray and used for lifting the muffler, and a positioning piece located on the moving base and used for abutting against the vehicle frame to assemble the lifted muffler. The application can replace manual positioning and lifting of the muffler during assembly, avoid manual positioning and lifting of the muffler, greatly improve the assembly convenience and efficiency of the muffler, and has good practicability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle assembly technology, and in particular to a muffler assembly device. Background Technology

[0002] When the muffler is located under the non-load-bearing frame, the assembly efficiency is extremely low because the muffler is mounted at a low position and is obstructed by a crossbeam above the non-load-bearing frame. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a muffler assembly device to solve the problem of low efficiency in assembling mufflers under non-load-bearing vehicle frames.

[0004] To achieve the above objectives, this utility model provides a muffler assembly device, wherein the muffler is assembled on the bottom of a vehicle frame, and the assembly device includes: Mobile chassis; A lifting tray is located above the mobile chassis and connected to the mobile chassis via a lifting assembly, so as to rise and fall relative to the mobile chassis under the drive of the lifting assembly. The lifting tray is provided with a support member, and the lifting tray supports the muffler through the support member. A positioning element is located on the mobile chassis and is used to abut against the frame for mounting the muffler after it has been lifted.

[0005] Furthermore, the lifting assembly includes a lifting cylinder, a lifting slide rail, and a lifting module. The lifting cylinder is located on the mobile chassis, and its lifting end is connected to the lifting module. The lifting slide rail is located on the mobile chassis and is slidably connected to the lifting module. The lifting module is connected to the lifting tray. When the lifting end of the lifting cylinder rises or falls, it drives the lifting module to rise and slide relative to the lifting slide rail, and the lifting tray rises and falls with the lifting module.

[0006] Furthermore, the lifting module includes a connector, a first slider and a pulley assembly, the first slider is fixedly connected to the connector, the first slider is slidably connected to the lifting slide rail, and the lifting end of the lifting cylinder is fixedly connected to the connector. The pulley assembly includes a lifting pulley and a lifting chain that are engaged with each other. The lifting pulley is rotatably connected to the connecting member. One end of the lifting chain is fixedly connected to the mobile chassis, and the other end is fixedly connected to the lifting tray. When the lifting end of the lifting cylinder rises or falls, the connecting member drives the first slider and the lifting pulley to rise or fall, and the lifting chain drives the lifting tray to rise or fall under the lifting action of the lifting pulley.

[0007] Furthermore, the lifting module also includes a second slider, one end of which is connected to the lifting tray, and the other end is slidably connected to the lifting slider; When the lifting tray is raised and lowered by the lifting chain, the second slider slides relative to the lifting rail.

[0008] Furthermore, the lifting tray includes a connecting rod and support arms connected to both sides of the connecting rod, and the support arms are provided with support members.

[0009] Furthermore, the support arm includes a first part and a second part connected in sequence. The first part includes a first end connected to the connecting rod and a second end connected to the second part. The first end is higher than the second end, and the second part is provided with a support member.

[0010] Furthermore, the support includes a first lifting member and a second lifting member. The top of both the first lifting member and the second lifting member is provided with an inclined surface. The inclined surfaces of the first lifting member and the second lifting member are arranged opposite to each other so that when the lifting tray lifts the muffler, it contacts the muffler and limits the muffler.

[0011] Furthermore, the positioning component includes a first positioning plate and a second positioning plate, which are respectively located on both sides of the lifting tray and are disposed close to the lifting slide rail.

[0012] Furthermore, the assembly device also includes an operating handle, which is located on the side of the lifting slide rail away from the lifting tray. The operating handle is equipped with a lifting switch, which is connected to the lifting cylinder to control the lifting of the lifting cylinder.

[0013] Furthermore, a buffer is provided on the side of the positioning member closest to the vehicle frame.

[0014] As can be seen from the above description, the muffler assembly device provided by this utility model includes a movable chassis, a lifting tray, and a positioning component. The lifting tray is located above the movable chassis and is connected to the movable chassis via a lifting assembly to move up and down relative to the movable chassis. A support component is provided on the lifting tray to contact the muffler and lift it. The positioning component is located on the movable chassis and assists in the assembly of the muffler after it has been lifted, thus positioning the muffler in the correct assembly position. This application achieves the mobility of the device through the movable chassis, lifts the muffler through the lifting tray, and can be raised and lowered according to the assembly needs of the muffler, improving the assembly convenience of the muffler. The positioning component determines the assembly position of the muffler, which is beneficial for the rapid determination of the assembly position and improves the assembly efficiency of the muffler. This application can replace manual positioning and lifting during the assembly of the muffler, avoiding manual positioning and lifting of the muffler, and can greatly improve the assembly convenience and efficiency of the muffler, thus having good practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a muffler assembly device according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of a muffler assembly device according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of a muffler assembly device according to an embodiment of the present invention. Figure 3 .

[0017] In the diagram: 100, mobile chassis; 200, lifting tray; 210, support component; 211, first lifting component; 212, second lifting component; 220, connecting rod; 230, support arm; 231, first part; 232, second part; 300, lifting assembly; 310, lifting cylinder; 311, lifting end; 312, fixed end; 320, lifting slide rail; 330, lifting module; 331, connecting component; 332, first slider; 333, pulley assembly; 333-1, lifting pulley; 333-2, lifting chain; 334, second slider; 400, positioning component; 410, first positioning plate; 420, second positioning plate; 430, buffer component; 500, operating handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] When the muffler is mounted at the bottom of the non-load-bearing frame, the mounting position is relatively low from the ground, usually 525mm. The upper part of the non-load-bearing frame is obstructed by the crossbeams of the non-load-bearing frame, making it impossible to install the muffler from the upper part of the non-load-bearing frame to the bottom. Therefore, during the muffler assembly process, it is necessary to manually bend over to carry the muffler, position, support, and assemble it at the bottom of the non-load-bearing frame. During this process, since the muffler weighs about 22kg, the load on the manual laborer is relatively large, resulting in low assembly efficiency and significant back injury to the worker, which is not conducive to efficient muffler assembly.

[0021] Based on this, this application proposes a muffler assembly device, which lifts the muffler to drive its rise and fall, and uses positioning components to determine the assembly position of the muffler. This device avoids manual lifting and positioning during muffler assembly, greatly improving the assembly efficiency of the muffler.

[0022] The following describes the process in detail through one or more specific embodiments.

[0023] In some embodiments, a muffler mounting device is provided, wherein the muffler is mounted on the bottom of the vehicle frame, such as... Figure 1 , Figure 2 and Figure 3 As shown, the assembly device includes: Mobile chassis 100; The lifting tray 200 is located above the mobile chassis 100 and is connected to the mobile chassis 100 via the lifting assembly 300, so that it can be raised and lowered relative to the mobile chassis 100 under the drive of the lifting assembly 300. The lifting tray 200 is provided with a support member 210, and the lifting tray 200 supports the muffler through the support member 210. Positioning component 400 is located on the mobile chassis 100. The positioning component 400 is used to abut against the frame for mounting the muffler after it is lifted.

[0024] Specifically, the lifting assembly 300 is connected to the movable chassis 100 and the lifting tray 200. The height of the movable chassis 100 is fixed. The lifting assembly 300 is used to drive the lifting tray 200 to rise and fall relative to the movable chassis 100. When the lifting tray 200 supports the muffler, the lifting assembly 300 drives the lifting tray 200 to rise and fall, thereby realizing the lifting and lowering of the muffler. The movable chassis 100 is used to realize the mobility of the assembly device. The lifting tray 200 is used to support the muffler and rise and fall during the process of supporting the muffler, thereby realizing the lifting and lowering of the muffler and moving the muffler to its corresponding assembly position. This avoids manually lifting the muffler to the corresponding assembly position and helps to improve assembly efficiency.

[0025] In addition, the lifting tray 200 is located above the mobile chassis 100, which enables the lifting tray 200 to exert a uniform force on the mobile chassis 100, and avoids the positional deviation of the lifting tray 200 and the mobile chassis 100, which would cause uneven force on the mobile chassis 100 and affect the stress stability of the mobile chassis 100.

[0026] The positioning component 400 is located on the mobile chassis 100 and its position is fixed. With a coordinate system established using the transverse direction of the vehicle frame as the X-axis, the longitudinal direction as the Y-axis, and the height direction as the Z-axis, the relative position of the positioning component 400 and the lifting tray 200 in the X-axis direction is fixed. During the lifting process of the lifting tray 200, the relative position of the lifting tray 200 and the positioning component 400 in the X-axis direction remains constant. Therefore, when the positioning component 400 abuts against the vehicle frame, the position of the lifting tray 200 and the muffler it supports relative to the vehicle frame in the X-axis direction remains constant, thus achieving proper assembly of the muffler. The positioning of the muffler in the X-axis direction and the positioning of the muffler in the Y-axis direction are determined manually. When it is determined that the actual position of the muffler in the Y-axis direction is offset from the assembly position, the position in the Y-axis direction can be flexibly adjusted by moving the movable chassis 100. The position of the muffler in the height direction, i.e., the Z-axis direction, is determined manually. When it is determined that the actual position of the muffler in the Z-axis direction is offset from the assembly position, the position in the Z-axis direction can be flexibly adjusted by operating the lifting assembly 300 to control the lifting tray 200.

[0027] In this embodiment, the assembly device includes a movable chassis 100, a lifting tray 200, and a positioning component 400. The lifting tray 200 is located above the movable chassis 100 and is connected to the movable chassis 100 via a lifting assembly 300 to lift relative to the movable chassis 100. A support component 210 is provided on the lifting tray 200 to contact the muffler and lift it. The positioning component 400 is located on the movable chassis 100. When assembling the muffler after it has been lifted, the positioning component 400 is used to assist in the assembly of the muffler and to position the muffler at the assembly position. This application achieves the mobility of the device through a mobile chassis 100, lifts the muffler through a lifting tray 200, and can be raised and lowered according to the assembly needs of the muffler, improving the assembly convenience of the muffler. The positioning component 400 determines the assembly position of the muffler, which is conducive to the rapid determination of the assembly position and improves the assembly efficiency of the muffler. This application can replace manual positioning and lifting during the assembly of the muffler, avoiding manual positioning and lifting of the muffler, and can greatly improve the assembly convenience and efficiency of the muffler, and has good practicality.

[0028] In some embodiments, the lifting assembly 300 includes a lifting cylinder 310, a lifting slide rail 320, and a lifting module 330. The lifting cylinder 310 is located on the mobile chassis 100, and its lifting end 311 is connected to the lifting module 330. The lifting slide rail 320 is located on the mobile chassis 100 and is slidably connected to the lifting module 330. The lifting module 330 is connected to the lifting tray 200. When the lifting end 311 of the lifting cylinder 310 rises or falls, it drives the lifting module 330 to rise and slide relative to the lifting slide rail 320, and the lifting tray 200 rises and falls with the lifting module 330.

[0029] Specifically, the lifting cylinder 310 includes a fixed end 312 and a lifting end 311. The fixed end 312 is connected to the mobile chassis 100, and the lifting end 311 is connected to the lifting module 330 to drive the lifting module 330 to lift. The lifting slide rail 320 is fixed on the mobile chassis 100, and the lifting module 330 is slidably connected to the lifting slide rail 320 to slide relative to the lifting slide rail 320 to achieve lifting. The lifting module 330 is connected to the lifting tray 200. When the lifting module 330 lifts, it drives the lifting tray 200 to lift, thereby realizing the lifting cylinder 310 driving the lifting tray 200 to lift.

[0030] It should be noted that the lifting slide rail 320 fixes the lifting trajectory of the lifting module 330, preventing the lifting module 330 from deviating from its lifting trajectory under external force, which in turn affects the lifting trajectory of the lifting tray 200 and makes it difficult for the lifting tray 200 to position the muffler correctly.

[0031] In this embodiment, the lifting assembly 300 includes a lifting cylinder 310, a lifting module 330, and a lifting slide rail 320. The lifting cylinder 310 drives the lifting module 330 to slide relative to the lifting slide rail 320, thereby realizing the lifting of the lifting module 330. The lifting module 330 is connected to the lifting tray 200 to drive the lifting tray 200 to lift during the lifting process. The lifting cylinder 310 is the lifting power source, and the lifting module 330 is the connecting component between the lifting cylinder 310 and the lifting tray 200, so that the lifting tray 200 rises and falls with the lifting cylinder 310. The lifting slide rail 320 limits the lifting trajectory of the lifting module 330 to fix the lifting path of the lifting module 330, thereby fixing the lifting path of the lifting tray 200. This is beneficial to the horizontal stability of the lifting tray 200 during the lifting process and to the lifting stability of the lifting tray 200 in supporting the muffler.

[0032] In some embodiments, the lifting module 330 includes a connector 331, a first slider 332 and a pulley assembly 333. The first slider 332 is fixedly connected to the connector 331 and slidably connected to the lifting slide rail 320. The lifting end 311 of the lifting cylinder 310 is fixedly connected to the connector 331. The pulley assembly 333 includes a lifting pulley 333-1 and a lifting chain 333-2 that are engaged with each other. The lifting pulley 333-1 is rotatably connected to the connector 331. One end of the lifting chain 333-2 is fixedly connected to the mobile chassis 100, and the other end is fixedly connected to the lifting tray 200. When the lifting end 311 of the lifting cylinder 310 is raised or lowered, the connecting member 331 drives the first slider 332 and the lifting pulley 333-1 to rise or fall, and the lifting chain 333-2 drives the lifting tray 200 to rise or fall under the lifting action of the lifting pulley 333-1.

[0033] Specifically, the lifting module 330 includes a connector 331, a first slider 332, and a pulley assembly 333. The first slider 332 is fixedly connected to the connector 331 and slidably connected to the lifting slide rail 320 to slide relative to the lifting slide rail 320 and achieve lifting. The connector 331 is connected to the lifting end 311 of the lifting cylinder 310 to rise and fall with the lifting end 311 of the lifting cylinder 310. The first slider 332 rises and falls with the connector 331 to slide relative to the lifting slide rail 320.

[0034] The pulley assembly 333 includes a lifting pulley 333-1 and a lifting chain 333-2. The lifting pulley 333-1 is rotatably connected to the connecting member 331, so as to rotate relative to the connecting member 331 and rise and fall with the connecting member 331. The lifting chain 333-2 is engaged with the lifting pulley 333-1, with one end connected to the movable chassis 100 and the other end connected to the lifting tray 200. When the lifting pulley 333-1 rises and falls with the connecting member 331, the lifting pulley 333-1 drives the lifting chain 333-2 to rotate, thereby changing the distance between the two ends of the lifting chain 333-2. The height of the movable chassis 100 remains unchanged, and the lifting tray 200 is raised and lowered.

[0035] For example, when the lifting pulley 333-1 rises, the length of the lifting chain 333-2 connecting the lifting pulley 333-1 and the movable chassis 100 increases. Since the length of the lifting chain 333-2 remains unchanged, the length of the lifting chain 333-2 connecting the lifting pulley 333-1 and the lifting tray 200 shortens, and the lifting tray 200 rises. When the lifting pulley 333-1 falls, the length of the lifting chain 333-2 connecting the lifting slider and the movable chassis 100 shortens. Since the length of the lifting chain 333-2 remains unchanged, the length of the lifting chain 333-2 connecting the lifting slider and the lifting tray 200 increases, and the lifting tray 200 falls.

[0036] It should be noted that when the lifting end 311 of the lifting cylinder 310 rises or falls to a height of h, the length of the lifting chain 333-2 connecting the lifting pulley 333-1 and the movable chassis 100 increases or decreases by h, and the length of the lifting chain 333-2 connecting the lifting pulley 333-1 and the lifting tray 200 increases or decreases by 2h.

[0037] In this embodiment, the lifting module 330 includes a connector 331, a first slider 332, and a pulley assembly 333. The connector 331 is connected to the lifting cylinder 310, the first slider 332, and the pulley assembly 333. The lifting tray 200 is connected to the connector 331 via the pulley assembly 333, enabling the lifting cylinder 310 to drive the lifting tray 200 to rise and fall. The pulley assembly 333 includes a lifting pulley 333-1 and a lifting chain 333-2 that are engaged with each other. When the lifting pulley 333-1 rises and falls with the connector 331 under the action of the lifting cylinder 310, the lifting chain 333-2 can drive the lifting tray 200 to achieve a rise and fall of 12 times relative to the lifting pulley 333-1. This increases the adjustment range of the lifting height of the lifting tray 200, making it more flexible to adjust the position of the muffler when the lifting tray 200 is supporting it, thus improving the practicality of the assembly device.

[0038] In some embodiments, the lifting module 330 further includes a second slider 334, one end of which is connected to the lifting tray 200 and the other end is slidably connected to the lifting slide rail 320; When the lifting pallet 200 is raised and lowered under the action of the lifting chain 333-2, the second slider 334 slides relative to the lifting slide rail 320.

[0039] Specifically, the second slider 334 is located below the first slider 332 and is connected to the lifting tray 200. When the lifting tray 200 is raised or lowered, the second slider 334 slides up and down relative to the lifting rail 320. The setting of the second slider 334 can make the lifting path of the lifting tray 200 constant during the lifting process, and avoid the horizontal swaying of the lifting tray 200 under the lifting action of the lifting chain 333-2, which is not conducive to the lifting stability of the muffler. The setting of the second slider 334 is beneficial to improving the lifting stability of the lifting tray 200, thereby improving the practicality of the assembly device.

[0040] In addition, the second slider 334 is located below the first slider 332, and there is a certain gap between the first slider 332 and the second slider 334. This gap can compensate for the distance difference caused by the second slider 334's lifting distance being twice that of the first slider 332 during the lifting process, thereby avoiding the conflict between the second slider 334 and the first slider 332 during the lifting process, which is beneficial to the practicality of the assembly device.

[0041] In some embodiments, the lifting tray 200 includes a connecting rod 220 and support arms 230 connected to both sides of the connecting rod 220, and the support arms 230 are provided with support members 210.

[0042] Specifically, the connecting rod 220 is connected to the second slider 334 and the lifting chain 333-2 to realize the lifting of the lifting tray 200. The support arm 230 is used to support the muffler. The support member 210 is located on the support arm 230 to contact the muffler and realize the support of the muffler.

[0043] It should be noted that the distance between the two support arms 230 is adapted to the length of the muffler so that the two support arms 230 can stably support the muffler, which is beneficial to the stability of the lifting tray 200.

[0044] In this embodiment, the lifting tray 200 includes a connecting rod 220 and support arms 230 connected to both sides of the connecting rod 220. The connecting rod 220 is used to connect with the lifting assembly 300 to realize the lifting of the lifting tray 200. The support arms 230 are used to support the muffler. The support member 210 is made of polyurethane material to contact the muffler and support it. The support member 210 can prevent the support arms 230 from scratching the muffler during the process of supporting it, which is beneficial to protect the muffler and improve the practicality of the assembly device. The support arms 230 can simplify the structure of the lifting tray 200, reduce the cost of the assembly device, and improve its applicability.

[0045] In some embodiments, the support arm 230 includes a first part 231 and a second part 232 connected in sequence. The first part 231 includes a first end connected to the connecting rod 220 and a second end connected to the second part 232. The first end is higher than the second end, and the second part 232 is provided with a support member 210.

[0046] Specifically, the first part 231 is an inclined structure, and the second part 232 is a horizontal structure. The support member 210 is located on the second part 232. When the support member 210 lifts the muffler, it enables the muffler to be lifted smoothly, improving the lifting stability. The first end of the first part 231 is used to connect with the connecting rod 220, and the second end of the first part 231 is used to connect with the second part 232. The first end is higher than the second end, so that the height of the second part 232 is lower than that of the connecting rod 220. When the assembly device lifts the muffler, the lower height of the second part 232 can increase the lifting height range of the second part 232, thereby enabling the muffler at different heights to be lifted, improving the practicality of the assembly device.

[0047] In addition, the first part 231 is inclined and closer to the second end than the first end, which can prevent the lifting tray 200 from being unable to rise to the assembly position due to the obstruction of the vehicle frame when the assembly device lifts the muffler at the bottom of the vehicle frame, thus improving the practicality of the assembly device.

[0048] In this embodiment, the support arm 230 includes a first part 231 and a second part 232 connected in sequence. The first end of the first part 231 is connected to the connecting rod 220, and the second end of the first part 231 is connected to the second part 232. The first end is set higher than the second end, and the second part 232 is set horizontally. The support member 210 is located on the second part 232 to support the muffler. The first part 231 is tilted so that it is not affected by the vehicle frame, which makes it easier to lift the muffler to the assembly position and improves the practicality of the lifting tray 200.

[0049] In some embodiments, the support member 210 includes a first lifting member 211 and a second lifting member 212. The top of the first lifting member 211 and the second lifting member 212 are both provided with inclined surfaces. The inclined surfaces of the first lifting member 211 and the second lifting member 212 are arranged opposite to each other so that when the lifting tray 200 lifts the muffler, it contacts the muffler and limits the muffler.

[0050] Specifically, the first lifting member 211 and the second lifting member 212 are spaced apart along the length of the second part 232. Both the first lifting member 211 and the second lifting member 212 are used to contact and lift the muffler. The top of both the first lifting member 211 and the second lifting member 212 has an inclined surface. The inclined surfaces of the first lifting member 211 and the second lifting member 212 are arranged opposite to each other, that is, the inclined surface of the first lifting member 211 is inclined toward the second lifting member 212, and the inclined surface of the second lifting member 212 is inclined toward the first lifting member 211. When the lifting tray 200 lifts the muffler, the inclined surfaces of the first lifting member 211 and the second lifting member 212 are in contact with the muffler. The inclined surfaces of the first lifting member 211 and the second lifting member 212 can simultaneously limit the muffler, so that the muffler is smoothly lifted on the second part 232.

[0051] It should be noted that the distance between the first lifting member 211 and the second lifting member 212 is adapted to the width of the muffler, so that the first lifting member 211 and the second lifting member 212 can jointly limit the muffler.

[0052] In this embodiment, the support member 210 includes a first lifting member 211 and a second lifting member 212. The top surfaces of the first lifting member 211 and the second lifting member 212 are both inclined surfaces, and the inclined surfaces of the two are arranged opposite to each other to limit the position of the muffler. This allows the muffler to be stably set on the lifting tray 200 when the lifting tray 200 lifts the muffler, thereby improving the practicality of the assembly device.

[0053] In some embodiments, the positioning member 400 includes a first positioning plate 410 and a second positioning plate 420, the first positioning plate 410 and the second positioning plate 420 being located on both sides of the lifting tray 200 and disposed close to the lifting slide rail 320.

[0054] Specifically, the first positioning plate 410 and the second positioning plate 420 are arranged side by side and located on both sides of the lifting tray 200. The first positioning plate 410 and the second positioning plate 420 are located close to the lifting slide rail 320 and the connecting rod 220 of the lifting tray 200, and away from the second part 232 of the lifting tray 200. When the lifting tray 200 lifts the muffler to the bottom of the frame, the moving chassis 100 is moved until the first positioning plate 410 and the second positioning plate 420 are in contact with the outer side of the frame, thus achieving the lateral positioning of the muffler on the frame. The arrangement of the first positioning plate 410 and the second positioning plate 420 can achieve rapid positioning by utilizing their contact with the outer side of the frame, which is beneficial to improving the assembly efficiency of the assembly device in assembling the muffler.

[0055] In some embodiments, the assembly device further includes an operating handle 500, which is located on the side of the lifting slide rail 320 away from the lifting tray 200. The operating handle 500 is provided with a lifting switch, which is connected to the lifting cylinder 310 to control the lifting of the lifting cylinder 310.

[0056] Specifically, the lifting tray 200 is located above the movable chassis 100. The lifting tray 200 and the lifting slide rail 320 are slidably connected through the second slider 334. Therefore, one side of the lifting slide rail 320 is close to the lifting tray 200, and the other side is away from the lifting tray 200. There are no other structures on the side away from the lifting tray 200. By setting the operating handle 500 on the side of the lifting slide rail 320 away from the lifting tray 200, it is not only convenient for the user to operate and move the assembly device, but also avoids the operating handle 500 from affecting the lifting of the lifting tray 200, thus improving the practicality of the assembly device.

[0057] In addition, the operating handle 500 is equipped with a lifting switch connected to the lifting cylinder 310. The user can control the lifting of the lifting cylinder 310 by operating the lifting switch, thereby controlling the lifting of the lifting tray 200.

[0058] It should be noted that the operating handle 500 may have a structure similar to that of a bicycle handlebar, so as to facilitate the user's movement of the assembly device.

[0059] In this embodiment, the operating handle 500 facilitates the user's movement of the assembly device. The operating handle 500 is equipped with a lifting switch connected to the lifting cylinder 310, which facilitates the user's control of the lifting tray 200 and improves the user's operational convenience.

[0060] In some embodiments, the positioning member 400 is provided with a buffer member 430 on the side near the vehicle frame.

[0061] Specifically, the positioning member 400 is positioned so that it abuts against the frame to achieve positioning. The buffer member 430 is provided on the side of the positioning member 400 that is close to the frame to prevent the positioning member 400 from scratching the frame when it abuts against the frame, thereby improving the practicality of the positioning member 400 and the assembly device.

[0062] It should be noted that the positioning component 400 includes the first positioning plate 410 and the second positioning plate 420. The buffer component 430 is provided on the side of the first positioning plate 410 and the second positioning plate 420 near the frame. The height of the buffer component 430 on the first positioning plate 410 and the second positioning plate 420 is the same as the height of the frame relative to the first positioning plate 410 and the second positioning plate 420. This arrangement can avoid the buffer component 430 having an excessively large area, which would lead to waste.

[0063] In this embodiment, the positioning member 400 is provided with the buffer member 430 on the side near the vehicle frame. The buffer member 430 is used to abut against the vehicle frame to avoid scratching the vehicle frame and improve the practicality of the assembly device.

[0064] In some embodiments, the mobile chassis 100 includes a T-shaped bracket and casters. The T-shaped bracket not only ensures the stability of the mobile chassis 100, but also simplifies the structure of the mobile chassis 100, reduces the cost and weight of the assembly device, and improves the convenience of manually moving the mobile chassis 100.

[0065] It should be noted that the T-shaped bracket has three free ends, and each free end is provided with a universal wheel at its bottom, which ensures the stability of the mobile chassis 100 while improving the mobility of the mobile chassis 100.

[0066] The following is a detailed description of the usage process of the muffler assembly device: 1. Pick-up process Move the assembly device to the shelf where the muffler is located, and move the assembly device to the bottom of the target muffler. Operate the lifting switch on the operating handle 500 so that the support 210 on the lifting tray 200 abuts against the bottom of the target muffler. Then move the assembly device, and the target muffler moves with the assembly device to complete the removal of the target muffler, avoiding the process of manually carrying the muffler.

[0067] 2. Transportation process Move the assembly device that supports the target muffler to the side of the vehicle frame. Operate the lifting switch on the operating handle 500 to lower the lifting tray 200 and the target muffler until the target muffler can move to the bottom of the vehicle frame. Then move the assembly device until the positioning part 400 of the assembly device abuts against the outer side of the vehicle frame. Manually determine whether the position of the target muffler in the longitudinal direction of the vehicle frame is correct by moving the assembly device to make adjustments in the longitudinal direction.

[0068] 3. Installation process Operate the lifting switch on the operating handle 500 to raise the target muffler to the installation position, and then install it manually. After installation, operate the lifting switch on the operating handle 500 to lower the lifting tray 200 to remove the lifting tray 200 from the bottom of the vehicle frame, thus completing the installation of the target muffler.

[0069] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0070] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A muffler assembly device, wherein the muffler is assembled on the bottom of a vehicle frame, characterized in that, The assembly device includes: Mobile chassis; A lifting tray is located above the mobile chassis and connected to the mobile chassis via a lifting assembly, so as to rise and fall relative to the mobile chassis under the drive of the lifting assembly. The lifting tray is provided with a support member, and the lifting tray supports the muffler through the support member. A positioning element is located on the mobile chassis and is used to abut against the frame for mounting the muffler after it has been lifted.

2. The muffler assembly of claim 1, wherein, The lifting assembly includes a lifting cylinder, a lifting slide rail, and a lifting module. The lifting cylinder is located on the mobile chassis, and its lifting end is connected to the lifting module. The lifting slide rail is located on the mobile chassis and is slidably connected to the lifting module. The lifting module is connected to the lifting tray. When the lifting end of the lifting cylinder rises or falls, it drives the lifting module to rise and slide relative to the lifting slide rail, and the lifting tray rises and falls with the lifting module.

3. The muffler assembly device according to claim 2, characterized in that, The lifting module includes a connector, a first slider and a pulley assembly. The first slider is fixedly connected to the connector and slidably connected to the lifting slide rail. The lifting end of the lifting cylinder is fixedly connected to the connector. The pulley assembly includes a lifting pulley and a lifting chain that are engaged with each other. The lifting pulley is rotatably connected to the connecting member. One end of the lifting chain is fixedly connected to the mobile chassis, and the other end is fixedly connected to the lifting tray. When the lifting end of the lifting cylinder rises or falls, the connecting member drives the first slider and the lifting pulley to rise or fall, and the lifting chain drives the lifting tray to rise or fall under the lifting action of the lifting pulley.

4. The muffler assembly device according to claim 3, characterized in that, The lifting module also includes a second slider, one end of which is connected to the lifting tray and the other end of which is slidably connected to the lifting slide rail; When the lifting tray is raised and lowered by the lifting chain, the second slider slides relative to the lifting rail.

5. The muffler assembly of claim 1, wherein The lifting tray includes a connecting rod and support arms connected to both sides of the connecting rod, and the support arms are provided with support members.

6. The muffler assembly of claim 5, wherein, The support arm includes a first part and a second part connected in sequence. The first part includes a first end connected to the connecting rod and a second end connected to the second part. The first end is higher than the second end, and the second part is provided with a support member.

7. The muffler assembly device according to claim 6, characterized in that, The support includes a first lifting member and a second lifting member. The top of both the first and second lifting members is provided with an inclined surface. The inclined surfaces of the first and second lifting members are arranged opposite to each other so that when the lifting tray lifts the muffler, it contacts the muffler and limits the muffler.

8. The muffler assembly device according to claim 2, characterized in that, The positioning component includes a first positioning plate and a second positioning plate, which are located on both sides of the lifting tray and are positioned close to the lifting slide rail.

9. The muffler assembly device according to claim 2, characterized in that, It also includes an operating handle, which is located on the side of the lifting slide rail away from the lifting tray. The operating handle is equipped with a lifting switch, which is connected to the lifting cylinder to control the lifting of the lifting cylinder.

10. The muffler assembly of claim 1, wherein, The positioning component has a buffer on the side near the vehicle frame.

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